Home / 28,193.62-38,908.48-15,618.38

Finding the Fourth Proportional to 28,193.62, 38,908.48 and 15,618.38

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Solution

The fourth proportional to 28,193.62, 38,908.48 and 15,618.38 is: 21,554.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.62 : 38,908.48 = 15,618.38 : x
  2. Step 2: Convert to fraction form
    28,193.62/38,908.48 = 15,618.38/x
  3. Step 3: Cross multiply
    28,193.62x = 38,908.48 × 15,618.38
  4. Step 4: Simplify right side
    28,193.62x = 607,687,425.86
  5. Step 5: Solve for x
    x = 607,687,425.86/28,193.62
  6. Step 6: Final answer
    x = 21,554.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.